S
M
T
W
T
F
S
26
61°
43°
27
71°
43°
28
72°
54°
29
55°
47°
30
52°
40°
1
44°
36°
2
45°
37°
3
59°
32°
4
71°
48°
5
71°
46°
6
57°
41°
7
53°
38°
8
61°
49°
9
68°
51°
10
60°
43°
11
56°
40°
12
57°
42°
13
59°
51°
14
65°
50°
15
67°
51°
16
68°
49°
17
67°
49°
18
66°
50°
19
69°
53°
20
75°
55°
21
72°
53°
22
68°
47°
23
64°
47°
24
66°
48°
25
66°
49°
26
67°
49°
27
67°
48°
28
68°
49°
29
69°
48°
30
68°
50°
31
74°
58°
1
70°
54°
2
71°
51°
3
71°
59°
4
74°
58°
5
75°
59°
6
80°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Louisville
Louisville's May 2026 forecast shows daily high temperatures ranging from 53° to 80°, with overnight lows between 38° and 61°. The average high for May is 67° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Louisville. See also: June | July | August.
